The yellow Roboforce Astronaut, aka Chip Nebula, has an exclusive torso and leg parts, both of which feature a heavily yellow "circuit board" styling, and the word ROBO. He has a transparent neon green helmet, and a smiling, semi-robotic face.

The Red Astronaut:

The red Roboforce astronaut looks considerably less robotic than his yellow counterpart, and has normal black and red legs. He does however have a "Circuit board" styled torso, once again with the word ROBO printed on it. He has a smiling face with some stubble, and wears a bandanna under his transparent red helmet.